Steam-jet tube or flue cleaner.



un. 653,5l2. Patented July lo, |906. w. H... lmzeasoLL. STEAM Uf time; QR: FLUE CLEANER- W/ 7'NESSE S NITED STATES 'PATENT OFFICE.

WORTHINGTON H. INGERSOLL, OF HAMBURG, NEW JERSEY.

STEAM-JET TUBE-OR FLUE. CLEANER.

SPECIFICATION forming part of Letters Patent NO. 653,512, dated July 10, 1900.

Application iiled January 8, 1900. Serial No. 726. (No model.)

To @ZZ whom it 77mg/ concern:

Be it known that I, WORTHINGTON H. IN-

GERSOLL, a citizen of the United States, and' a resident of Hamburg, in the county of Sussex and State of New Jersey, have invented a new and Improved Steam-Jet Tube or Flue Cleaner, of which the following is a full, clear, and exact description.

This invention pertains to boiler tube and flue cleaners which remove loose scale and dirt that obstruct draft through the flues by the impact of a current of steam passed through the cleaning device.

The object of my invention is to provide features of improvement for a steam-j et tube and iiue cleaner which will increase its efficiency in operation and not increase the cost of production.

The invention consists in the novel details of construction and combination of parts hereinafter described, and defined in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a side View of the improvement as applied. Fig. 2 is a longitudinal sectional view substantially on the line 2 2 in Fig. l; and Fig. 3 is an end elevation ofy the device, seen in the direction of the arrow a; in Fig. 2.

The body of the tube or flue cleaner consists of a coniform shell or head 4, having the larger end partially closed by an annular wall 5, from which is extended the central nipple or collar 6, that is interiorly threaded to receive the exteriorly-threaded portion of one end of the blower-pi pe 7. (Shown partially in Figs. 1 and 2.) On the exterior surface of the hollow coniform head 4 a suitable number of longitudinally-extended ribs or flanges 8 are formed or secured, which are spaced apart and preferably have a length nearly equal to that of the head from which they project. From the smaller end of the coniform body or head 4 extends a nozzle 9, which is of cylindrical form and is in'open communication with the interior of the head 4, of which it is an integral projection. Upon the inner surface of the nozzle 9 one or more spiral ribs 10 are formed or secured, having a coarse quick pitch, the turns of said spiral-ribbed formation being suitably spaced apart, as is clearly shown in Fig. 2.

' The blower-pipe 7.in complete form is of vsufficient length to adapt it for convenient handling when the device complete is to be put into service, and from the blower-pipe a flexible tubular extension, such as hose, is

extended to a source of high-pressure steam, as usual in such due-cleaning devices, and as this is a common feature it is omitted from the drawings.

In operation the blower-head 4 is introduced at its nozzle end within one end of a flue A-that is, one of a set in a boiler which requires cleaning. High-pressure steam is now caused to pass through the blower-head 4 and highly heats it, as its side wall is comparatively thin.

As shown in the drawings, the inner diameter of the discharging-nozzle 9 and the space taken up by the spiral-ribbed formation l0 therein reduces thecapacit-y for discharging steam from the nozzle, so that the capacity for steam-supply had by the blower-pipe 7 exceeds it. Hence a great pressure of steam is aforded within the blower-head, and maximum force is had by the steam-j et discharged from the nozzle.

It will be seen in Fig. l, Where a ue A is shown by dotted lines, that the spaced longitudinal ribs or iianges 8 have contact with the end of said flue and prevent a complete insertion of the blower-head within the flue. The contact of the ribs or flanges 8 with the flue end serves to center the nozzle 9 within the iue; but the blower-head may be moved to incline the nozzle toward any part of the interior wall of the iue. The pressure of steam that passes into and through the blowerhead 4 and nozzle 9 induces a current of air to be rapidly drawn between the flanges 8 over the hot coniforrn head 4, and this aircurrent mixes with the steam-j et issuing from the nozzle 9.

As the twists of the beads or ribs 10 in the nozzle 9 give the steam-jet a spiral direction when said steam-jet issues from the nozzle, it will be evident that the inducted hot current of air will also assume a spiral twist and coact with the spiral steanbjet to forcibly loosen clogging soot or the like that is on the proved device economical as well as eiective in service.

Having thus described my invention, I claim as new and desire to secure by Letters Patentl. The combination with a steam-supply pipe and a coniform blower-head whereon the supply-pipe is secured at the larger end of said blower-head, of spaced flanges on the exterior of the blower-head, a discharge-nozzle on the smaller end of the blower-head, and a spiral-rib formation extending along the inner side of the nozzle, the nozzle having less area for steam-passage than the supplypipe has, for the purpose specified.

2. A tube or ilue cleaner, comprising a coniform hollow blower-head, an internallythreaded collar at the larger end of the blowerhead to receive the end of a steam-blower pipe, the cylindrical jet-nozzle extending from the smaller end of the blower-head, and the spiral-rib formation on the inner surface of the nozzle, the discharging capacity of the nozzle being less than that of the steamblower pipe, for the purpose set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

WORTHINGTON Il. INGERSOLL.

Witnesses:

S. C. BELLUR, LEWIS TILLIsoN. 

